Read was a keen road-rider and worked as an apprentice fitter at Brown and Green, a manufacturer of industrial machinery in Luton, Bedfordshire. His first road machine was a Velocette KSS which he started on at the UK legal-minimum riding age of sixteen in 1955, followed by a BSA Gold Star DBD32.[3] He started amateur short-circuit racing in 1958 on a DukeBSA Gold Star.[4] In 1960 he won the Junior Manx Grand Prix on a Manx Norton at record speed[4] followed by the Junior (350cc) TT race in 1961.[5] He placed second in the 350cc and 500cc races at the 1961 North West 200 in Northern Ireland on Manx Nortons[6]

He was a two-time winner of the Thruxton 500 endurance race in 1962 and 1963 riding Syd Lawton's Norton Dominator 650SS machines.[7]

In 1963, up and coming Read was temporarily drafted-in to fill Derek Minter's absence in the Scuderia Duke Gilera Grand Prix team, as Minter had been seriously injured in May at Brands Hatch after a last-lap accident when dicing for the lead with Dunstall rider Dave Downer, after which Downer died.[8][9]

When contesting June's Isle of Man Senior TT, the Duke team claimed 2nd (Hartle) and 3rd (Read) to Mike Hailwood's MV, followed by Dutch TT at Assen where it was 1st (Hartle) and 2nd (Read) with Mike Hailwood's MV retiring in the 500cc class. Read was second to Hailwood in the Belgium GP 500cc race. Minter recovered and returned in time to reclaim his team place for the next event, the Ulster GP at Dundrod in August. The Scuderia Duke Gilera Grand Prix team disbanded at the end of 1963.[8][9]

During the mid-1960s Yamaha had prolific riders in Read, Canadian Mike Duff and later Bill Ivy. In 1964, Read gave Yamaha their first world title when he won the 250cc class.[2] He would repeat as champion the following year.[2] For 1966, Yamaha would introduce a new, four cylinder 250cc bike. Teething problems with the new engine meant he would lose the crown to Hailwood. In 1967 he would battle Hailwood on his six-cylinder Honda all the way to the final round. They would end up tied but, Hailwood took the crown due to having five wins to Read's four.[2] Read took over from Frank Perris in 1967 as representative for the Grand Prix Riders' Association.[10]

The 1968 season proved to be controversial for Read. The Yamaha factory had wanted Read to concentrate on winning the 125cc title and team-mate Bill Ivy to take the 250cc crown. After winning the 125cc championship, Read decided to disobey team orders and fight Ivy for the 250cc title.[1] They finished the season tied in the points and Read was awarded the championship based on elapsed times. It was a costly decision as Yamaha would never offer him another ride.[1]

In January 1969 Read lent his support to a project intended to provide racing engines to the general public – dubbed Read Weslake, it was a prototype Weslake four-stroke 500cc vertical twin, with four valves per cylinder and gear-driven camshafts. Initially the engine was installed into standard RickmanStreet Metisse frame intended for a Triumph Bonneville engine.

Read was to be rider and development consultant. He decided that the Metisse frame was too heavy, and despite intentions to manufacture a lighter race frame, he decided to abandon the Rickman frame in favour of a Reynolds frame built by Ken Sprayson for Tom Arter and his rider Peter Williams who had a project to replace their ageing Matchless G50

Read was to be based at Weslake in Rye, England to develop the project further, releasing Peter Williams for his Norton work, but Read pulled out in November. The engine project continued, enlarging the capacity to 700cc in 1970 with some race entries sponsored by Geoff Monty before finally folding[11]

In 1972 Read was given a ride with the MV Agusta team and in 1973, he took the 500cc title, the first World Championship won using Lockheed disc brakes.[2][13] He successfully defended his crown in 1974 in what would be the last world championship for the legendary Italian marque.[2] It would also be the last time a four-stroke machine would win a title until the advent of the MotoGP class in 2002.

Read also had 'guest' rides as part of the JPS team Norton for 1972, finishing fourth in the Daytona 200-mile race. Other riders were Norton factory employee Peter Williams and Tony Rutter as third rider. Rutter was soon replaced by John Cooper

On the MV he gave Agostini's Yamaha a strong fight for the 1975 500cc championship but finished in second place.[2] Realizing the writing was on the wall for four-stroke machinery, he left the Italian company to campaign a privateer Suzuki in the 1976 season after which he retired from Grand Prix racing.

Read entered TT events from 1977, winning the F1 (Formula 1) race on the works Honda CB750 SOHC and Senior race on a Suzuki.[14] Again on the Honda for 1978 F1, he recorded a DNF but was placed 4th in the Classic.[15] These races led to Honda producing a limited-production of 150 'Phil Read Replica' Formula 1 race-styled roadsters based on the CB750F2 with styling accessories by Seeley in Honda Britain colours of blue and red.

During the 1970s period, Read started to distribute Premier helmets[18] and gave his name to a range of motorcycle clothing, including marketing a 'Phil Read Replica' full-face helmet with the familiar design and colour scheme of black with three white flashes and chequer strip. Read also opened a Honda dealership at Hersham, Surrey in 1979.[19]

^ abMotor Cycle, 16 February 1967, p. 209 Racing Line by David Dixon. Read takes over from Perris. "Speaking from his Guernsey home, where he has a boat retailing business, Phil is just as anxious as Frank to keep the association going. Copies of the constitution are available from Phil Read, Hakone, Pleinmont Road, Tortegal, Guernsey, Channel Islands". Accessed and added 1 November 2014